Not exact matches
«This could be a consequence of the limited variety of scents to be found in the arid, alpine meadow environment, but that doesn't explain why the yak, a species that also inhabits the Tibetan Plateau, has an increased number of
olfactory receptor genes compared with cattle,» Dr Subramanian
said.
«The fact that the MS4As have been preserved for at least 400 million years suggests that these
receptors play a crucial role in enabling animals to interact with the
olfactory environment,» Datta
says.
If
olfactory neurons followed that strategy,
says Eggan, the clone would have only one type of
olfactory receptor and thus a drastically reduced sense of smell.
The pattern of gene expression is strikingly similar to that for individual
olfactory receptor genes, Liberles
says.
The work contributes to a growing appreciation of the molecular diversity of
olfactory and pheromone
receptors,
says Catherine Dulac, a neuroscientist at Harvard University.